ORIGINAL: windslore

Jim,
I know the model you are looking for. It was published in the UK magazine RCM&E in November 1969 (pictured below).
You can get the plan from a group calling themselves X-List plans. There wb page is http://www.xlistplans.demon.co.uk/. The plan is located on page 5 of the following Pdf doc. It's not easy to find but it is there costing £14.50 Plan Number RC1035 http://www.xlistplans.demon.co.uk/NEW_XLIST.pdf

Good luck, if I can be of any help, I visit the US regularly from the UK.

John